ドブに捨すてる

expression, ichidan verb

throw down the drain; waste; squander

Idiomatic expression meaning to waste something valuable or let an opportunity go to waste, as if throwing it into a gutter. Often used for money, effort, or talent.

• そんなにお金かねをドブに捨すてるような使つかい方かたはやめなさい。

  Stop wasting money like that—it's like throwing it down the drain.

• せっかくのチャンスをドブに捨すててしまった。

  I ended up squandering a golden opportunity.